Liquid-elevating device.



W. JAY.

LIQUID ELEVATING DEVICE.

APPLICATION FILED NOV. x5. 1915.

1 9 1 @Uflfifi a Patented Apr. 25, 1916.

WEBB J AY, OF CHICAGO, ILLINOIS.

LIQUID-ELEVATING DEVICE.

Specification of Letters Patent.

Patented Apr. 25, 1916.

Application filed November 15, 1915. Serial No. 61,476.

To all whom it may concemt: Be it known that I, WEBB JAY, a cit1zen ofthe United States, residing at Chicago,

in the county of Cook and State of Illinois,

have invented new and useful Improvements in Liquid-Elevating Devices,of which the following is a specification, reference being had to theaccompanying drawings, forming a part thereof. I

This invention relates to apparatus for lifting liquid from a lower to ahigher receptacle by suction, the particular details being designed withspecial reference to the use of the device on a motor vehicle, as forlifting liquid fuel from a low level tank to a position from which itmay be supplied by gravity to the carbureter of the vehicle motor. L

The various elements comprising the present structure are similar to theelements shown in my co-pending application, Serial No. 39,943, filedJuly 15, 1915, but the present invention involves a differentarrangement of said elements and certain resultant modification ofdetail hereinafter described and shown in the drawing, as indicated bythe claims.

In the drawings; Figure l is a diagrammatic side elevation indicatingtherelative location of'the several parts of this invention upon themotor vehicle. Fig.2 is a fore-and-aft vertical section of the principalelements of the invention.

Referring first to-Fig. 1, the main supply tank is indicated at A,disposed as frequently at the rear of the vehicle, the general out--line of said vehicle being presented in dotted lines. The remainder ofthe apparatus is disposed'alongside the engine under the hood or bonnetinclosing the same and is connected with the tank, A, by a singlepipe,B,

which terminates in the tank near the bottom thereof and is air-rangedto empty into -a receiving chamber, 1.- Through a duct or conduit, 2,formed in a common head or cover, 3, the chamber, 1, is placedconstantly in communication with an air inlet chamber, 4, from which apipe, C, leads to a source of suction as for example, the intakemanifold of the engine as indicated in Fig, 1. Through the agency of thesuction acting through the pipe, C, and small aperture,'5, through whichsaid pipe communicates with the chamber, 4, the .pressure inthe latterchamber and in the chamber, 1,11s so reducedas to cause the atmosphericpressure acting upon the liquid in the tank, A, to force said valve, 7,opening'into an atmospheric pres-.

sure chamber, 8, serves at certain times for the discharge of the liquidaccumulated in the receiving chamber, 1. But, since the chamber, 8, isat all times under atmospheric pressure acting through its constantlyopen vent, 8 the valve, 7 cannot open to discharge the liquid in thechamber, 1, so long as the chamber, 1, is subject to the suction throughthe pipe, C, and the resulting reduced pressure. Said chamber, 1,therefore continues to fill until it over-flows through the conduit, 2,into a receiving cup, 9, ca ried on the end of a lever, 10, whoseopposite end COIltrOlS an air valve, 11, having a port, 12, which islarge as compared with the aperture, 5. The forked end, 10*, of thelever, 10, engages the stem of the valve, 11, with lost motion,operating between and upon shoulders, 11 and 11", the latter of whichlimits the movement of the lever, 10, in one direction while the cup, 9,stops against the bottom of the air inlet chamber, 4, to limit themovement in the opposite direction. The lever, 10, is yieldingly held ateither of said limits in a readily un-- dersto-od manner by means of aspring or springs, 13, connecting a point on the lever with a point onits supporting bracket, 14, at

.the opposite side of its fulcrum, 15. Thus,-

as the overflowing liquid from the'chamber,

1, accumulates in the cup, 9, and increases chamber, 4 and thence into adrain, 16, similar to the drain, 6, and provided with a similar valve,'17, which is contained within the valve chamber, 18, into which itopens, said valve chamber constituting substantially the receiving endof, and opening into a pipe, 19, le ding to the carbureter floatchamber. D, indicatedon Fig. 1, for furnishing the liquid fuel to saidcarbureter and a branch-pipe, 20, leads from the atmospheric pressurechamber, 8, into said pipe, 19. Through the branch, 20, the chambers,-8-and 18,are placed in constant comdecreases, the weight of theopposite end re eated. p

munication both delivering the liquid to the pipe, 19, and thence to thecarbureter, and

both being exposed to atmospheric pressure, 1 the chamber 8,continuously through thevent, 8, and the valve chamber, 18,intermittently through the'atmosphere port, 12, so that both of saidchambers aresubject to atmospheric pressure by way of the vent, 8". Thusit will be seen that upon the opening of the air valve, 11, whichrestores atmospheric pressure to the chambers, 4 and 1, the liquidcontents of the chamber, 1, will immediately be discharged into thechamber,

8, there being no longer any suction to hold the valve, 7, closed, andfor a similar reason the liquid discharged through the leak, 9*, and thecup, 9, will drain at once into the chamber, 18.

As the quantity of liquid in the cup, 9,

of the lever, 10, will begin to over-balance the cup and eventually thelever will return to the position in which it is illustrated in Fig.2,and immediately upon such return by closing the valve, 11, will againsubject the chamber, 4, to the suction through the pipe, 0 and the cycleof operation will be It willbe understood that all the liquid dischargedinto the chamber, 8, becomes immediately available for use in thecarbureter at a rate determined by the demand of the engine andcontrolled by the usual float-operated valve in the chamber, D, of saidcarbureter and the liquid discharged into the chamber, 18, is similarlyavailable ditions, and especially under unusually fa-.'

.vorable running conditions, the engine will consume the fuel throughits carbureter at a slower rate than such fuel is delivered to thechambers, 8 and 18, by the feeding mechanism. Thus, after'the mechanismhas operated through a few cycles, it will accumulate a surplus ofliquid tending to completely fill the chambers, 8 and 18, with theirpipes, '19 and 20, leading to the car bureter.- Successivedischargesfrom the chamber, 1, tothe chamber, 8, will gradually raisethe generallevel of liquid in said chambers, 8 and 18,- so. that inthe event ,ofalong continued low demand of the engine for fuel, the liquid willrise'to such a point in the chamber, '4, thatthe cup, 9,

when filled by the overflow from the chamber, 1, and descending so as toopen the valve, 11 will dip into liquid so deep that 'to the level ofthe liquidv in the chamber, 4 is discharged while the cup' is down,whereas all that is discharged while the cup is said cup willnot emptythrough its'leakport, 9, sufficiently to cause the reverse action forclosing said valve, 11 until thelevel of liquid in the chamber, 4, hassuflioiently subsided. Thus the air valve, 11,

will remain open until the engine has used up enough of the. surplus. topractically empty the chamber, 4, and the suction through the pipe, C,will not operate until the reserve supply of liquid fuel is thusdiminished.

The blockade of the actionof the levercarried cup, 9, for operating thevalve, 11, Wlll always occur when the valve, 11, is open and never whenit is closed because her, 4, occurs almost entirely while the cup isdown, because the entire contents down ciently to cause it to riseagain, and the time it is next depressed, will be very small incomparison with the quantity'which it 'will discharge at said nextdepression, and

also small in comparison with the quantity which can be contained. insaid chamber in so much of its depth as" the distance to which the cupis depressed in the liquid by the reaction of the spring, 13.

I claim 1. In combination with a main low level reservoir, a receivingchamber at a higher level; a conduit from the main reservoir discharginginto thereceiving chamber; an air inlet chamber at approximately thelevel of the receiving chamber having a suction connection and anatmosphere :port; a suction and overflowconnection from the upper partof the receiving chamber to the upper part of said air inlet chamber; avalve controlling the atmosphere port; a device movably mounted in theair inlet chamber adapted and positioned to be v the change of level ofliquid in the -cham-' moved by the discharge and accumulation of liquidfrom said overflow connection; means operatively connecting said deviceto the atmosphere inlet valve, an atmospheric pressure chamber intowhich the receiving which is'opened by such gravity discharge chamberJdischarges by gravity; a valve and is adapted to be seated by suctionfrom the receiving chamber, a valve chamber vinto which the air-inletchamber discharges by gravity, a valve in said chamber which is openedby such gravity discharge and isadapted to be seated by suction from theair inlet chamber, and a liquid conduit leading from the atmosphericpressure chamber and from said valve chamber for delivering the contentsof both said chambers to the same destination. f

2. In combination with a main low level reservoir, a receiving chamberat a higher level; a conduit from the main reservoir discharging intothe receiving chamber; an air inlet chamber at approximately the levelof the receiving chamber having a suction connection and an atmosphereport and a valve controlling said port; a suction and overflowconnection from the receiving chamber to the air inlet chamber openingfor discharge in the air inletchamber at the upper part thereof; adevice movably mounted in said air inlet chamber, comprising a liquidreceiver positioned for receiving the liquid discharged through saidoverflow and adapted to be moved by the weight of the liquid soreceived, and means operatively connecting said device with theatmosphere valvefor opening the latter by said movement, said receiverhaving a leak. port through which the accumulated liquid is adapted todrain slowly in comparison with the rate at which it may be filled bythe overflow; a

valve chamber into which said air inlet ber, and to be seated by suctionfrom the air inlet chamber, and a liquid service pipe leading from saidvalve chamber for Supplying a device adapted to utilize the liquid.

3. ln combination with a main low level reservoir, a receiving chamberat a higher level; a conduit from the main reservoir discharglng intothe receiving chamber; a device positioned lower than said receivingchamber and adapted to'utilize the liquid which may be received into anddischarged from said receiving chamber; an air inlet chamber positionedalongside said receiving chamber, having a suction connection and anatmosphere port and a valve controlling said port; a common cover forsaid receiving chamber and said a1r lnlet chamber whereliy they areassociated as a unit, said cover containing a suction and overflowconduit between the two chambers; a devlce movably mounted in the airinlet chamber comprising a receiver positioned under the discharge endof the overflow conduit from the receiving chamber into the air inletchamber and adapted to be moved by the weight of the liquid thusreceived for opening the atmosphere valve; a valve chamber into whichthe air inlet chamber discharges by gravity; avalve in said valvechamber which is opened by such gravity discharge and is adapted to beseated by suction from the air inlet chamber, and a service pipe fromsaid valve chamber to the device which utilizes the liquid.

4. In combination with a mainlow level reservoir, a receiving chamber ata higher level; a conduit from the main'reservoir discharging into thereceiving chamber; an air inlet chamber at approximately the level ofthe receiving chamber having a suction connection and an atmosphere portand a valve controlling said port; a suction and overflow connectionfrom the upper part of the receiving chamber to the upper part of theair inlet chamber; a device movably mounted in said air inlet chambercomprising a receiver positioned for receiving the liquid dischargedfrom the overflow conduit, and adapted to be moved by the accumulationof such liquid for opening the atmosphere valve, and being provided withmeans for slowly emptying said receiver of the liquid so received foroperating it, and means for reversing its movement for closing theatmosphere valve when it is thus emptied; a device adapted to utilizethe liquid; drainage discharge connections from the bottom of thereceiving chamber and air inlet chamber respectively; valves adapted tobe opened by gravity discharge from said chambers and to be seated bysuction from said chambers respectively; and a conduit from the devicewhich utilizes the liquid having connections at its upper end forreceiving the liquid discharged by gravity from said receiving chamberand said air inlet chamber respectively.

I testimony whereof, I have hereunto set my hand, at Chicago, Illinois,this 8th day of November, 1915. 1

. WEBB JAY.

